Improvement in the manufacture of soap



HENRY A. PEAsn-o HARTFORD, CONNECTICUT.

I Letters Patent No. 99,468, dated February 1, 1870; emulated J aauo/ry21, 18 70.

IMPROVEMENT 11v THE MANUFACTURE-bewar The Schedule referred to in theseLetters Patent and making partof the same.

To all whom. it may concern Be it known that I, HENRY A; PnAsn, of-Hartford, county of Hartford, and State of Connecticut, have invented anew and useful Improvement in the Manufacture of Soap; and Ideclarethe-ibllo'wing to be a full and exact description thereof.

My improvement relates to the manufacture of hard soap, ascontradistinguished from soft orliquid soap.

The process is asfollows:

Take, say, seventy-five (7 5) pounds of tallow, stearine, or lard-oil,pour it into a kettle, and heat to about one hundred (100) degreescentigrade; a variation of a degree or two will do no hurt; 'Add one (1)pound of borax, skim ed the scum which soon rises, and allow to cool.When cooled to about ninety (90) degrees, (Centigrade always,) havingprovidedone hundred and thirty-five (135) pounds of caustic soda-lye, oftwenty-one (21) degrees strength, add the lye slow- 1y, till the mixturethickens. Care must be taken to have the lye cold, and of the rightstrength. When the lye is all in, stir rapidly till all the constituentsare thoroughly mingled. When this is done, having provided tweuty-five(25) pounds of cocoa or other heavy vegetable oil, add the cocoa orother oil, which will tend to neutralize the lye. When the mixtutebecomes free from a sharp bite, when applied to the tongue, then heatuntil the wholeis transparent, glossy, and Without spots. Now put it,expeditiously, into moulds or forms, and allow to harden.

Having proceeded thus far, I have produced a soap which is perfect, inits way, and which is vendible; but as I still further refine the soap,and produce a stillfiner article, I will, for convenience sake,desighate the process already described, as'the preliminary process, andthe soap already produced, as the preliminary product.

g I will now describe how I further refine my soap.. Take thepreliminary product, when it is cold and hard, and reduce it to powder.Put the powder into a kettle and heat slowly. For every pound of pow-.der, provide one (1) pint of gin, or other spirituous liquor,(preferably gin,) and commence puttiug'into the kettle, after the powderis-in, beating up the mixture as you pour, for it will froth. As soon asthe powder melts. or liquefies, it will at once become solid. Add thegin or other li uor gradually, with care, for the mixture will rise inthe kettle. The mixture will soon gloss over on the surface. Continue tof 7 add the liquor till all in. Themheat till the. whole forms abeautiful, transparent, jelly like mass N ow, add to every twenty (20)pounds of soap, seven (7) ounces of some peifumiugessence, or itsequivalent of essential oil, for perfumery, and stir till thoroughlymixed. Then put into form expeditiously, stir till it begins to harden,and then cover up. v

The product, designated herein as p the final product, produced-by thislast process, called herein the final process, is an excellent articlefor the toilet or medical uses. v

I claim, as my invention 1. The combination of ingredients described,forming the composition" designated herein as the pre liminary product,?thesame being compounded together by the process described herein as thepreliminary process.

2. As an article of manufacture, the compounddesignated herein as thepreliminary product.

3. The combination of ingredients, described herein, forming thecompound designated herein as the final product, the same beingcompounded together by the process described herein as the finalprocess.

4. As an article of manufacture, the compound described herein as thefinal product.

Dated May'2l, 1869.

' HENRY A. PEASE. Witnesses:

W. E. SIMONDS, WM. W. HYDE.

